Erw Schedule 40 Pipe
✔ Thickness: 0.6mm - 20mm
✔ Material:Q195,Q235,Q355
✔ Surface Treatment:Hot dip galvanized
✔ Pipe Ends：Bevelled,Plain,Grooved,Threaded.
✔ Standard: ASTM A53, API 5L, ASTM A252, ASTM A795, ISO65, DIN2440, BS1387. BS1139, EN10255, EN39, JIS3444, GB/T 3091 & GB/T13793.
Tianjin YOUFA International Trade Co.,Ltd is one of the most experienced manufacturers and suppliers of erw schedule 40 pipe in China. Welcome to wholesale bulk high quality customized produts at low price from our factory. For price list and cheap products, contact us now.
Youfa Steel Pipe's ERW is available in all the common sizes, up to 24", and is suitable for welding, grooving, threading and bending. Youfa black pipe is treated with coating to prevent corrosion, for extended service life in all kinds of low-pressure and mechanical applications, as well as air, steam, water, and gas lines. Our pipeline end treatment can be plain, bevelled, groove, threaded and coupled, or threads only (one end or both).
erw steel meaning
ERW stands for Electric Resistance Welding, a process used to manufacture steel pipes and tubes.ERW pipes are formed by rolling steel coils and welding the edges together using electric resistance heat and pressure, without filler material.
Key Features of ERW Pipe
Advantages – Cost-effective, high production speed, smooth surface finish, and uniform wall thickness.
Applications –Commonly used in water, oil, and gas transportation, structural purposes, and automotive industries.
Common Grades & Standards:
API 5L (for oil and gas pipelines)
ASTM A53 (general-purpose pipes)
ASTM A135 (structural applications)
erw schedule 40 pipe Size
| Electric Resistance Welding Erw Pipe Specification | |||
| INCH | Outside Diameter | SCH 40WT |
|
| (mm) | (mm) | ||
| 1/4" | 13.7 | 2.24 | |
| 3/8" | 17.1 | 2.31 | |
| 1/2" | 21.3 | 2.77 | |
| 3/4" | 26.7 | 2.87 | |
| 1" | 33.4 | 3.38 | |
| 1-1/4" | 42.2 | 3.56 | |
| 1-1/2" | 48.3 | 3.68 | |
| 2" | 60.3 | 3.91 | |
| 2-1/2" | 73 | 5.16 | |
| 3" | 88.9 | 5.49 | |
| 3-1/2" | 101.6 | 5.74 |
|
| 4" | 114.3 | 6.02 | |
| 5" | 141.3 | 6.55 | |
| 6" | 168.3 | 7.11 | |
| 8" | 219.1 | 8.18 | |
| 10" | 273 | 9.27 | |
| 12" | 323.8 | 10.31 | |
| 14" | 355 | 11.13 | |
| 16" | 406 | 12.7 | |
| 18" | 457 | 14.27 | |
| 20" | 508 | 15.09 | |
| 22" | 559 | - | |
| 24" | 610 | 17.48 | |
The most commonly used wall erw steel pipe thickness in the current market are SCH40 and SCH80, which are widely used in construction, water supply, petroleum, chemical, fire protection systems, etc
Characteristics of Sch 40 ERW cs Pipe
Schedule 40 is a standard pipe wall thickness defined by the ASME B36.10 and B36.19 standards. When combined with ERW (Electric Resistance Welded) erw mild steel carbon, these erw hollow section pipes offer a balance of strength, durability, and cost-effectiveness.
Material & Composition
Carbon Steel Grades: Typically made from ASTM A53 Grade A/B, ASTM A106, or API 5L.
Carbon Content: Typically contains 0.05–0.25% carbon, making it ductile and weldable.
Other Elements: Small amounts of manganese (Mn), phosphorus (P), sulfur (S), and silicon (Si) for strength and weldability.
Common Sizes & Applications
Sizes: ½" to 24" diameters (larger sizes may be spiral-welded).
Applications:
- Plumbing & Water Supply (ASTM A53).
- Low-Pressure Gas & Oil Lines (API 5L).
- Structural & Mechanical Uses (scaffolding, handrails).
- HVAC & Fire Protection Systems.
Schedule 40 ERW Mild Steel Pipes are a versatile, economical choice for plumbing, construction, and low-pressure industrial uses. While not suitable for extreme conditions, their weldability, availability, and cost efficiency make them a popular choice.
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